About the Number

208021970

208021969 ← → 208021971

2進数表記:1100011001100010100111010010

漢数字表記:二億八百二万千九百七十

素因数分解:

2 1 × 5 1 × 13 1 × 491 1 × 3259 1

素因数の和:3770
約数の個数: 32
約数和(自身を含む): 404187840
約数和(自身を除く): 196165870

約数列:
[1, 2, 5, 10, 13, 26, 65, 130, 491, 982, 2455, 3259, 4910, 6383, 6518, 12766, 16295, 31915, 32590, 42367, 63830, 84734, 211835, 423670, 1600169, 3200338, 8000845, 16001690, 20802197, 41604394, 104010985, 208021970]

約数ペア:
[(1, 208021970), (2, 104010985), (5, 41604394), (10, 20802197), (13, 16001690), (26, 8000845), (65, 3200338), (130, 1600169), (491, 423670), (982, 211835), (2455, 84734), (3259, 63830), (4910, 42367), (6383, 32590), (6518, 31915), (12766, 16295)]

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